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BW Cap A234 WPB – SCH 40S

BW cap is used to close the pipe system,the function is similar to plug.A234 WPB is a commonly used grade for carbon steel in American Standard.SCH 40S is represents a wall thickness of butt welded fittings.The commonly used wall thicknesses for BW fittings are SCH 40,SCH 80.

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BW cap has the same function as the pipe plug and is used to close the pipe. A234 WPB is a commonly used grade of American Standard which represents carbon steel.Schedule refers to the wall thickness of butt welded pipe fittings, and Sch40s is one of the most commonly used.


BW cap is similar to the blind plate in form, but the blind plate can be moved and removed, while the pipe cap cannot be removed.


1. Corrosion resistance, wear resistance and high hardness.
2. The structure is tight, intact and the pores are small.
3. It has strong separation from the base metal and good adhesion.
4. It is evenly distributed and has a certain thickness.


The use of Forged End Pipe Caps is common in many industries such as oil and gas industries, chemical industries and water supply lines.



Shape  Cap
Size Range 1/2″ – 80″ / DN15 – 2000
Thickness Schedule SCH 10,SCH 10S, SCH 20, SCH 40,SCH 40S, STD, XS,SCH 80, SCH 80S, SCH 100, SCH 120, SCH 160, XXS
China Standard GB/T12459, GB/T13401, HG/T21635/21631, SH3408/3409
America Standard ANSI / ASME B16.9 / MSS SP 43
apan Standard JIS B2311/2312/2313
Europe Standard EN10253
Carbon Steel Q235, 20#, 35#, 45#, 20G,ASTM A234 WPB/WPC
Low Temp Carbon Steel Q345B, 16Mn, ASTM A420 WPL6
Pipeline Steel ASTM A860 WPHY 42 / 46 / 56 / 60 / 65
Alloy Steel ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92,15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5
Stainless Steel ASTM A403 WP304/304L/304H, 316/316L, 310S, 321, 317,347,904L
Duplex Stainless Steel ASTM A815 S32205, S31803, 32750, 32760



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